The Abusive's "Concession" Trap:

"Yes, I've verbally abused you, publicly degraded you and demonized you, and physically crushed you in a very privately way... BUT!! you once hit me back when I was beating the crap out of you...

... If you think about it, we're essentially the same, right?

So... We BOTH have to work ourselves into a middle-ground peace treaty... You go first!!"